ASCIIEncoding::GetByteCount Method (Char*, Int32)
Calculates the number of bytes produced by encoding a set of characters starting at the specified character pointer.
This API is not CLS-compliant.
Assembly: mscorlib (in mscorlib.dll)
public: [SecurityCriticalAttribute] [CLSCompliantAttribute(false)] [ComVisibleAttribute(false)] virtual int GetByteCount( wchar_t* chars, int count ) override
Parameters
- chars
-
Type:
System::Char*
A pointer to the first character to encode.
- count
-
Type:
System::Int32
The number of characters to encode.
| Exception | Condition |
|---|---|
| ArgumentNullException | chars is null. |
| ArgumentOutOfRangeException | count is less than zero. -or- The resulting number of bytes is greater than the maximum number that can be returned as an integer. |
| EncoderFallbackException | A fallback occurred (see Character Encoding in the .NET Framework for complete explanation) -and- EncoderFallback is set to EncoderExceptionFallback. |
To calculate the exact array size required by GetBytes to store the resulting bytes, the application uses GetByteCount. To calculate the maximum array size, the application should use GetMaxByteCount. The GetByteCount method generally allows allocation of less memory, while the GetMaxByteCount method generally executes faster.
Requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.
Available since 10
.NET Framework
Available since 2.0